Retimbering crane



Aug.

J. DEL C0229 RETIMBERING CRANE Filed Dec. 1922 2 Sheets-Sheet l INVENTOR JOSEPH DEL EIJZZ'U.

(ymgm ATTORNEY mm RN Aug. 19, 1924.

J. DEL COZZO RETIMBERING cams Filed Dec. 8, 1922 2 Sheet-s$heel 2 INVENTOR JUSEPH 05p cmzzu ATTORNEY Patented Aug. 19, 1924.

UNITED STATES JOSEPH DEL COZZO, OF SCOIIA, CALIFORNIA.

BETIMBERING CRANE.

Application filed December 8, 1922. Serial No. 605,689.

To all whom it may concern:

Be it known that- I, JosnrH DEL Gozzo, a subject of the King of Italy, residing at Scotia, in the county of Humboldt and State of California, have invented new and useful Improvements in Retimbering Cranes, of which the following is a specification.

This invention relates to new and useful improvements in re-timbering cranes.

The principal object of this invention is to devise means whereby a bridge-like structure, such as a railroad trestle may be retimbered in an efficient and expeditious manner.

Another object is to provide a device which is cheap to construct, simple to operate and one which may be easily transported w from place to place.

A still further object is to provide means whereby a quantity of timber may be transported upon the device and through the use of my crane moved to a point outside of the trestle, so as to be lowered below the bed thereof.-

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same,

Figure l is a. side elevation of my device, mounted upon a trestle,

Figure 2 is an endelevation of Figure 1, and

Figure 3 is an enlarged detail view, shown partly in cross section, of movable sheaves.

Figure 4 is a plan view of the device.

At the present time in re-timbering a trestl or bridge, the timbers are carried on a hand car to the place of use and are then secured to a rope. In most instances, a rope is tied to each end of the timber or stringer and the same is let over the outer r edge of the trestle. This procedure necessitates at least two men and in many instances when heavy timbers are being used, it necessitates the use of a large gang with the consequent expense through their loss of time when not otherwise employed.

I propose to simplify this process by providing a truck having a crane mounted thereon, which crane has a boom which is adapted to extend over the edge of the trestle, whereby the timbers may be lowered through the medium of suitable cables secured to the boom. Through this method it is possible for one man to operate the entire device.

In the accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numerals 5 and 6 refer to piles upon which the timbers 7 and S are placed. These piles are braced as by suitable braces 9 and 11 extendin from pile to pile throughout the length of the trestle, while the numerals l2 and 13 refer to cross braces between the op posite rows of piles.

The usual ties 14 are placed upon the timbers 7 and 8 and are held in place by longitudinal timbers, as shown at 16 and 17. The structure thus far described merely relates to the usualtrestle construction upon which the usual rails 18 and 19 are placed.

My device is placed upon a hand car, which car comprises side members 21 and 22 mounted upon axles 23 and 24 and having wheels 26 and 27 which are adapted to roll upon the rails 18 and 19.

At 28 and 29 I have shown angle iron members, which angle iron members have up-turned ends 31 and 32. The ends 32 project beyond the side of the truck as is best shown in Figure 2 and form a support for the timbers as shown in dotted lines in Figures 1 and 2.

Uprights 33 and 34 spaced by across member 36 and resting upon the side members 21 and 22, serve to support parallel boom members 37 and 38. The cross member 36 serves to support a hoisting mechanism comprising a drum 39 having a gear 41 secured thereto. This gear meshes with a gear 42 to which a crank 43 is secured. The usual band brake 44 operated by a handle 46 serves to regulate the speed of rotation of the drum 39 while a dog 47 serves to lock the gear 41 against rotation when desired.

The drum 39 is adapted to have a cable 48 secured thereto and partly wound there on. This cable passes over a sheave 49 mounted between the parallel boom members 37 and 38, thence to a similar sheave 51 and back as shown in dotted lines at 52, to a sheave 53, thence around the sheave 53 and back as shown in dotted lines at 54 to a sheave in axial alignment with the sheave 51, from which it passes as shown at 56 to a sheave 57, thence over this sheave around a now referring to Figure 3, it will be noted that the sheaves 57 and 58 are mounted upon a plate 64, having-raised portions 66 and G7, which raised portions serve to form a bearing for the sheave axles. A lever 60 is pivoted to the upright 84: and provided with a bifurcated end for the purpose of moving the plate 64 upon its rollers 68.

' It is understood that this plate extends between the boom members and is adapted to be longitudinally moved thereon. This movement may be accomplished in any convenient manner, but for the purpose of illustration, I have shown a series of rollers 68 upon which the plate is adapted to roll. By cutting away a portion of the boom member I provide a track as shown at 69 upon which the roller 68 may move.

At 71 I have shown a chain having one end secured to a pin 7 2 and having a hook 73 formed upon its opposite end. This hook is adapted to be secured in a link 74 of a chain 76. This chain 76 passes between adjacent ties 1 and is secured to a cross member 77. The purpose of this chain is to prevent over-balancing of my device.

The operation of my device is as 01 lows Assuming that a pile of lumber, as indicated in dotted lines at A, has been placed upon the angle iron members 28 and 29 and that the device as a whole has been moved upon a trestle, the first opera tion is to rotate the crank 43 for the purpose of raising the block 58 to a point above the upper-most timber of the stack. After this point has been reached, the sheaves 57 and 59 are moved longitudinally through the action of the lever 60 so as to bring the grappling iron 68 above the stack, after which a piece of lumber is en- I gaged. By again manipulating the crank 53, the piece of lumber may be raised and then by moving the sheaves 57 and 59 toward the right of the drawing through the action or the lever 60, the block 58 will be carried to a point beyond the side of the trestle. By now releasing the dog 47 from its engagement with the dog ll, the cable may be allowed to unwind a sufficient distance to lower the sheave 58 to the proper point to whichthe plank is to be delivered.

This lowering movement maybe controlled either through the use of the crank or through the use ofthe brake handle 56. During this operation it is of course understood that the chains 71 and 76 have been connected as shown in Figure 2 to the under side of the ties, in such a manner as to prevent the device as a whole from tipping.

It will thus be seen that I have provided a device which is very simple in construction, and one'which will save considerable time in re-timbering of a trestle. I 1

It is to be understood that the form of my invention herewith shown and described is to be taken as apreferred example ofthe same, and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claim.

Having thus claim In a device of the character described'the combination with a hand car, of a support ing structure mounted on said hand car, parallel spaced boom members mounted described my invention, I

above and secured to said supporting structure, said boom members extending beyond the outer margin of said hand car, hoisting means secured on said supporting structure and consisting of a drum, means for rotating said drum, two sets of spaced sheaves mounted between said booms at a point within the outer margin of said hand car, a mov able plate secured on said boom at apoint beyond the outer margin of said car, sheaves mounted on said plate, acable hav'ingone end secured to said drum and extending up and over one of the sheaves positioned between said boom, thence over another of said sheaves spaced from said first mentioned sheave, over another of said sheaves in axial alignment with said firstmentioned sheave, thence over another of said sheaves in axial alignment with said second mentioned sheave, thence over one of said sheaves on said movable plate, thence downwardly through a sheave suspended below said booms and over the other of said sheaves mounted on said plate and secured between the ends of said booms.

In testimony whereof I aflix mysignwture. 

